GB1367180A - Magneto-optical storage layers - Google Patents
Magneto-optical storage layersInfo
- Publication number
- GB1367180A GB1367180A GB5003372A GB5003372A GB1367180A GB 1367180 A GB1367180 A GB 1367180A GB 5003372 A GB5003372 A GB 5003372A GB 5003372 A GB5003372 A GB 5003372A GB 1367180 A GB1367180 A GB 1367180A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magneto
- layer
- optical storage
- storage layers
- storage layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thin Magnetic Films (AREA)
Abstract
1367180 Magneto-optical storage layer SIEMENS A G 31 Oct 1972 [3 Dec 1971] 50033/72 Headings C7A and C7F A magneto-optical storage layer is made of an alloy having the formula:- wherein the sum of x 1 + x 2 ....+x n is less than 1, T<SP>1</SP>, T<SP>2</SP>.... T <SP>n</SP> are transition elements or copper, and z is 0À8 to 1À2. The layer may be made by simultaneously vapourizing the transition element and Mn, from separate sources on to a Bi layer (e.g. on a mica substrate) and then annealing the multi-component layer. The layer may be covered with SiO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712160164 DE2160164C3 (en) | 1971-12-03 | 1971-12-03 | Magneto-optical storage layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1367180A true GB1367180A (en) | 1974-09-18 |
Family
ID=5826967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5003372A Expired GB1367180A (en) | 1971-12-03 | 1972-10-31 | Magneto-optical storage layers |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4864500A (en) |
| DE (1) | DE2160164C3 (en) |
| FR (1) | FR2162048B3 (en) |
| GB (1) | GB1367180A (en) |
| IT (1) | IT988703B (en) |
| LU (1) | LU66584A1 (en) |
| NL (1) | NL7216437A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024573B2 (en) * | 1974-12-25 | 1985-06-13 | 日本電信電話株式会社 | ferromagnetic thin film |
| JPS5942444B2 (en) * | 1975-09-29 | 1984-10-15 | 日本電信電話株式会社 | Magneto-optical thin film and its preparation method |
| JPS51110697A (en) * | 1975-03-24 | 1976-09-30 | Nippon Telegraph & Telephone | JIKIKOGAKUHAKUMAKUTO SONOSAKUSEIHO |
| US4649451A (en) * | 1982-09-27 | 1987-03-10 | Canon Kabushiki Kaisha | Magneto-optical recording medium having alternately-layered high and low refractive index layers |
-
1971
- 1971-12-03 DE DE19712160164 patent/DE2160164C3/en not_active Expired
-
1972
- 1972-10-31 GB GB5003372A patent/GB1367180A/en not_active Expired
- 1972-11-29 FR FR7242401A patent/FR2162048B3/fr not_active Expired
- 1972-11-30 IT IT3230672A patent/IT988703B/en active
- 1972-12-01 LU LU66584D patent/LU66584A1/xx unknown
- 1972-12-04 NL NL7216437A patent/NL7216437A/xx unknown
- 1972-12-04 JP JP12144272A patent/JPS4864500A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT988703B (en) | 1975-04-30 |
| LU66584A1 (en) | 1973-02-08 |
| DE2160164B2 (en) | 1974-01-17 |
| FR2162048A1 (en) | 1973-07-13 |
| NL7216437A (en) | 1973-06-05 |
| JPS4864500A (en) | 1973-09-06 |
| DE2160164C3 (en) | 1974-08-15 |
| FR2162048B3 (en) | 1976-01-09 |
| DE2160164A1 (en) | 1973-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |